tr:nth-child(2n+0) {
    background-color:#000000;
    color:#FFFFFF;
    text-align:center;
    }
    td {
      width:20px;
      text-align:center;
    }
    table {
      border: double 2px #0000FF;
    }
    .magic td {
      width:50px;
      text-align:center;
    }